RUNWAY SAFETY. An airside driver s guide to

Transcription

1 RUNWAY SAFETY An airside driver s guide to 6th edition - October 2016

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3 INTRODUCTION Traffic levels rise, airports expand, and you, as an airside driver are expected to understand how to safely operate your vehicle on or near runways. Add all the various combinations of weather, time of day, aircraft movements and language skill to the mix, and the risk of an error increases. Of particular concern to all operators on an aerodrome is the risk of a runway incursion which may have catastrophic consequences. An airside driver s guide to runway safety was created for you and compliments a similar guide developed for aircrew. It is not intended to cover everything there is to know about safely operating on an aerodrome. Rather, the guide focuses on four areas that are important in surface operations: 1. planning your aerodrome operation Page 3 2. aerodrome procedures Page 4 3. communications Page 8 4. aerodrome markings, signs and lights Page 16 Each section identifies safety measures you can take to help reduce errors that lead to runway incursions. Runway incursions are a serious safety concern. Globally, runway collisions have involved combinations of regular public transport aircraft, commuter aircraft, general aviation and ground vehicles. Many have resulted in fatalities. It doesn t take much be it either single or multiple, intentional or unintentional factors you could be involved in a runway incursion. An airside driver s guide to runway safety 1

4 Local Runway Safety Teams One of the main global initiatives to improve runway safety is the implementation of Local Runway Safety Teams (LRST) at towered locations. The LRST consists of local representatives addressing local runway safety issues. At some airports, the LRST function is embedded in another aerodrome meeting, such as the Aerodrome Users Group or Airside Safety Committee. More details about about Local Runway Safety Teams are available from: 2

5 PLANNING YOUR AERODROME OPERATION Thorough knowledge of your aerodrome is essential for safe driving. Take a moment to think about where you need to go and how you are going to get there. Have a current aerodrome chart or diagram readily available to use. Check the expected route against the aerodrome chart or diagram and pay special attention to any complex intersections (for example, where two or more taxiways cross) or where you will be close to a runway. Review current aerodrome information for any taxiway or runway closures, construction activity or other surface risks. Always be aware of where you are and what is around your vehicle especially when operating close to a runway. If in doubt of your current position on a taxiway, ask air traffic control (ATC) for assistance. If in doubt of your position on an apron, ask for assistance from other ground personnel (for example the aerodrome safety officer). Use service roads whenever possible to minimise time spent on taxiways or runways. Movement Area Guidance Sign (MAGS): you are at the Holding Point for Runway on Taxiway E with 2345m take-off run available on Runway 16. An airside driver s guide to runway safety 3

6 AERODROME PROCEDURES Following good operating procedures increases the safety of operations on an aerodrome. This section focuses on some of the common tasks that you should incorporate into your driving habits. ATC Instructions Drivers of vehicles must obtain an ATC clearance and instructions before entering the manoeuvring area (any taxiway or runway). Once you receive an ATC clearance or instruction, you should: write down the clearance or instruction, especially where they are complex. This can help reduce the chance of forgetting part of it monitor ATC clearances/instructions issued to other vehicles and aircraft to help you build up a picture of what is happening around you be especially careful if another vehicle or aircraft has a similar sounding call sign to yours listen carefully to avoid responding to a clearance/instruction intended for someone else ask immediately if you are uncertain about any ATC clearance/instruction read back all required clearances/instructions including your vehicle call-sign remember an ATC instruction to operate on taxiways or other areas of the aerodrome is NOT a clearance to cross a runway holding position, illuminated stopbar or to enter or operate on a runway unless it specifically states that you are cleared to do so. (Note: you must not cross an illuminated stop bar, even if ATC clear you to do so.) where holding positions are not marked, vehicles should hold short of the runway strip edge usually marked by gable markers. This also applies to works vehicles operating on areas adjacent to runways where there are no taxiways, such as mowers. (Note: a runway holding point marking will always be set back from the sealed surface of a runway and never aligned with the edge of the sealed surface) advise ATC if you anticipate a delay or are unable to comply with their instructions look for light signals from the tower if you suspect radio problems. SIGNAL Green flashes Red light Red flashes White flashes TOWER SIGNALS TO VEHICLES MEANING Permission to cross landing area or to move onto taxiway Stop Move off the landing area or taxiway and watch out for aircraft Vacate the manoeuvring area in accordance with local instructions 4

7 Responsibility for collision avoidance on the ground A common misconception when operating on aerodrome movement areas is that ATC will provide positive separation between other aircraft or vehicles on the ground. This is not the case. While ATC will issue pushback approvals and provide taxi clearances, the main purpose of these is to regulate aircraft/vehicle movement at the aerodrome. The avoidance of a collision on the apron area is a joint responsibility of the pilot in command, airside driver and any assisting ground personnel. While ATC will provide you information about other aircraft/vehicles that they are aware of, it is imperative that drivers, pilots and ground crew maintain a good lookout. Did you know? Several Australian airports are equipped with the Advanced Surface Movement Guidance Control System (A-SMGCS). This is an air traffic surveillance system enabling aircraft and vehicles on the airport surface to be accurately tracked by ATC in all visibility conditions. Drivers of vehicles that need to operate on runways and/or taxiways at A-SMGCS equipped airports will find that their vehicles need to be fitted with vehicle locators, often referred to as VeeLo. These transmitters send vehicle information to the A-SMGCS system enabling the vehicle to be automatically tracked and identified on ATC tower displays. They are normally installed so that they switch on and off through the vehicle ignition switch, and will only transmit to ATC when the vehicle is on an area of ATC interest. This is normally, but not necessarily, only taxiways and runways. There is no requirement for drivers to interact with the VeeLo unless it has a manual ON/OFF switch. However, if it is not operating correctly drivers may be required to have it repaired. An airside driver s guide to runway safety 5

8 Situational awareness When operating on the aerodrome, you need to be aware of your location, how that location relates to your intended route and to other vehicles and aircraft that may be operating on the aerodrome. This is commonly referred to as situational awareness. Maintain situational awareness by: ensuring you understand and follow ATC instructions and clearances using a current aerodrome chart or diagram knowing the meaning of the visual aids available on the aerodrome, such as markings, signs and lights monitoring the radio and using the aerodrome chart to assist you in locating other aircraft (including helicopters) and vehicles that may be on the aerodrome maintaining a sterile environment in your vehicle you must be able to focus on your duties without being distracted by non-operational matters like engaging in conversation with a passenger or on a mobile phone using vehicle lights to convey location ensure rotating beacon is on when driving on aprons, taxiways and runways minimising heads down activities while the vehicle is moving. TIP: if you become uncertain about your location on the aerodrome manoeuvring area, make sure you are clear of any runway and STOP. Then advise ATC and, if necessary, request progressive clearances or instructions. Non-controlled aerodromes When operating at a non-controlled aerodrome, the additional safety net provided by ATC is removed and the principles of alerted see-and-avoid are critical to safety. In addition to the guidance in this booklet, make sure that you monitor the aerodrome frequency and broadcast your intentions to maintain both your situational awareness and that of other pilots and drivers. Although standard broadcasts are detailed in AIP, remember that you should also make any additional broadcasts you feel are necessary to minimise the risk of collision. At non-controlled aerodromes, you may be able to use an Aerodrome Frequency Response Unit (AFRU) to confirm that you are on the correct frequency and that your radio is working and set up correctly. 6

9 While driving on an aerodrome Use extra caution when directed to enter or cross a runway, especially at night and during reduced visibility conditions. Use all resources available to keep your vehicle on its assigned route, including: aerodrome charts and diagrams aerodrome markings, signs and lights. Make sure you comply with hold short or crossing instructions when approaching an intersecting runway. Make sure you are familiar with radio fail procedures, including tower light signals. Carry a mobile phone with the tower contact details as a back up. Clear left, ahead, above and right Scan the full length of the runway and the approaches for possible landing aircraft before entering or crossing any runway, even if you have received a clearance. Use utmost caution when operating on a runway where the exit taxiways intersect another runway, in particular when operating at aerodromes with parallel runway systems. Did you know? There have been significant runway incursions that have resulted from a driver responding to a clearance or instruction intended for another vehicle or aircraft. This is commonly the result of the driver expecting to hear his call sign in the next communication from ATC but in fact the communication is directed to another party with a similar sounding call sign. Remain alert to the call signs of other vehicles and aircraft operating on or near to a runway and listen carefully for your call sign in any communication from ATC. Contact ATC any time you have a concern about a potential confliction. Remember, never cross an illuminated stop bar even if you have an ATC clearance to do so. An airside driver s guide to runway safety 7

10 COMMUNICATIONS Effective driver/controller communications are vital to safe aerodrome operations. You can help enhance the controller s understanding by responding appropriately and using standard phraseology. Guidelines for clear and accurate communications: listen out before transmitting to avoid over transmitting an aircraft or other vehicle use standard phraseology when contacting ATC to ensure clear and concise communication. Your initial transmission should contain these elements: who you are calling your call-sign where you are located a concise description of what you want to do. state your position whenever making initial contact with any tower or ground controller, regardless of whether you have previously stated your position to a different controller focus on what ATC is instructing you to do. Do not perform any non-essential tasks while communicating with ATC. Good radio technique Prepare first: your transmission should be well thought out. Before using the microphone, know what you want to say and check to make sure you are on the appropriate frequency and will not be interrupting another transmission or its response. Communication with ATC should be concise and to the point: for unusual situations or lengthy communications, initial contact should be established first. Acknowledge all clearances: read back required elements of the clearance and end your transmission with your call-sign. 8

11 Read back any holding position specified in a clearance or instruction and any clearance or instruction to: hold short of a runway enter a runway cross a runway conditionally enter or cross a runway. Include the runway designator in all readbacks. If unfamiliar with the layout of an airport, ask for detailed instructions. Clarify any misunderstanding or confusion concerning ATC instructions or clearances. Did I hear that right? Question: you are driving on Runway 22 subject to an appropriate clearance and you hear, or see, what you think is a landing clearance for an aircraft approaching the same runway. What should you do? Answer: confirm with ATC that you are still cleared to operate on Runway 22. Always ensure that you maintain a listening watch on the appropriate frequency when operating on a runway. An airside driver s guide to runway safety 9

12 Glossary of phraseology This section contains a glossary of phraseology commonly used in aerodrome surface operations. For a complete listing of all ATC phraseology, consult the Aeronautical Information Publication (AIP). ACKNOWLEDGE let me know that you have received my message. AFFIRM yes. APPROVED permission for proposed action granted. BREAK I hereby indicate the separation between portions of the message. (To be used when there is no clear distinction between the text and other portions of the message). CANCEL annul the previously transmitted clearance. CLEARED authorised to proceed under the conditions specified. CONFIRM have I correctly received the following? Or did you correctly receive this message? CONTACT establish radio contact with... CORRECTION an error has been made in this transmission (or message indicated) the correct version is FINAL commonly used to mean that an aircraft is on the final approach course or is aligned with a landing area. HOLD POSITION stay in place, where you are currently located. HOLD SHORT hold at the appropriate holding position for the runway or the runway strip edge at the intersection of a crossing runway (remember that the runway strip edge will not be the sealed surface of the runway. It will be marked by gable markers and/or a holding point). 10

13 HOW DO YOU READ? what is the readability of my transmission? Note: The readability scale is: 1. unreadable 2. readable now and then 3. readable but with difficulty 4. readable 5. perfectly readable. I SAY AGAIN repeat for clarity or emphasis. NEGATIVE no or permission not granted or that is not correct. LINE UP AND WAIT used by ATC to inform a pilot to taxi onto the departure runway and to hold in take-off position. It is not an authorisation for take-off. It is used when take-off clearance cannot immediately be issued because of traffic or for other reasons. READ BACK repeat all, or the specified portion of this message back to me exactly as received. ROGER I have received all of your last transmission. Under no circumstances to be used in reply to a question requiring readback or a direct answer in the affirmative or negative. SAY AGAIN repeat all or the following part of your last transmission. SPEAK SLOWER reduce your rate of speech. STAND BY wait and I will call you. Means the controller or pilot must pause for a few seconds, usually to attend to other duties of a higher priority. The caller should re-establish contact if a delay is lengthy. Stand by is not an approval or denial. UNABLE TO COMPLY indicates inability to comply with a specific instruction, request or clearance. VERIFY request a check and confirmation of the information identified WILCO I understand your message and will comply with it. Under no circumstances to be used in reply to a question or instruction requiring a readback. An airside driver s guide to runway safety 11

14 Examples of ATC/driver communications Requesting tow EXAMPLE Driver: Sydney Ground, Tug Delta Whiskey, request tow Qantas 747 from Qantas Maintenance to International Bay 71. Controller: Tug Delta Whiskey, Sydney Ground, tow approved, proceed via Bravo One, hold short of Runway One Six Right. Driver: Tow via Bravo One, holding short of Runway One Six Right, Tug Delta Whiskey. Request to drive from one location to another on the aerodrome EXAMPLE Driver: Adelaide Ground, Tug Lima Delta, main apron, request proceed to maintenance hangars. Controller: Tug Lima Delta, Adelaide Ground, proceed via Kilo, Alpha and Foxtrot One to the maintenance hangars. Driver: Via Kilo, Alpha and Foxtrot One, Tug Lima Delta. Request to cross a runway EXAMPLE Driver: Tender 5, on Echo, request cross Runway One Six. Controller: Tender 5, on Echo, cross Runway One Six. Driver: On Echo, crossing Runway One Six, Tender 5. Request to enter runway for runway inspection EXAMPLE Driver: Car 2, on Kilo request enter Runway One Six for inspection. Controller: Car 2, on Kilo enter Runway One Six, report vacated. Driver: On Kilo, entering Runway One Six, Car 2. Is the tower active? There have been some instances where pilots or airside drivers are unsure if a tower is active or if CTAF procedures apply. If you are unsure, listen to the ATIS. If the tower is not active, the ATIS will be information ZULU and will include the time of activation and the CTAF frequency. 12

15 ATC instruction to vacate runway EXAMPLE Controller: Car 3, vacate runway. Driver: Vacate runway, Car 3. Driver: Car 3, runway vacated (when runway vacated). Note: the required terminology is runway vacated not clear of runway. ATC instruction to give way to other traffic EXAMPLE Controller: Tug Papa Victor, give way to Virgin 737 crossing right to left. Driver: Giving way to Virgin 737, Tug Papa Victor. ATC instruction to hold short EXAMPLE Controller: Tug Delta Whiskey, hold short of Taxiway Juliet. Driver: Holding short of Taxiway Juliet, Tug Delta Whiskey. An airside driver s guide to runway safety 13

16 Check your understanding of ATC instructions You are operating on the aerodrome detailed below and inform the tower that you want to proceed to the positions specified in each of four scenarios. The controller s instructions to you are provided. Select a circled number on the aerodrome diagram provided below to indicate where you are required to stop. 17 Control Tower 14 Terminal

17 Scenario A Smith Ground, Tug Tango Golf, at Main Terminal, request tow Citation to Runway Two Six run-up bays for engine runs. Tug Tango Golf, Smith Ground, tow approved via November, hold short of Runway Three Five. Scenario B Smith Ground, Tug Juliet India, at Main Terminal, request enter Runway Zero Eight to retrieve disabled aircraft. Tug Juliet India, Smith Ground, proceed via Hotel, hold short of Runway Zero Eight. Scenario C Car 2, on Kilo request enter Runway Three Five for runway inspection. Car 2, on Kilo enter Runway Three Five, hold short of Runway Two Six. Scenario D Car 3, on Juliet request cross Runway Three Five. Car 3, hold short Runway Three Five. Answer Answer Answer Answer Answers: A 4, B 8, C 13, D 14 Readback instructions to enter or hold short of a runway If instructed to hold short of a runway, you must not cross the marked runway holding point or holding position. You must read back any clearance or instruction to hold short of, enter, cross or operate on a runway or within a runway strip. Do not merely acknowledge these clearances or instructions by saying Roger or Wilco or your call sign. An airside driver s guide to runway safety 15

18 AERODROME MARKINGS, SIGNS AND LIGHTS Aerodrome markings, signs and lights are designed to assist you in navigating around an aerodrome. Aerodrome markings understanding the differences Review the colour and meaning of these items. In understanding aerodrome markings, remember the following principles. Colour Runway markings are white (although yellow taxiway centrelines may lead on, lead off or cross the runway). Taxiway markings are yellow. Markings on aprons and in ramp areas may include other colours (for example, it is common to mark vehicle roadways in white). A vehicle roadway on an apron area. The edges of a roadway are often identified by solid white stripes. An aircraft may taxi across roadways, but should not taxi on them. 16

19 Taxiway marking patterns If a marking pattern consists of two or more lines some of which are solid and some of which are dashed these are runway holding position markings. It is always permissible to cross from the dashed side to the solid side. ATC permission is always required to cross from the solid side to the dashed side at an aerodrome with an operating control tower. When instructed to Hold Short always stop prior to first solid line of the runway holding position marking. runway side holding side Aerodrome signs how to get from here to there safely Along with aerodrome markings and lights, aerodrome signs are designed to assist you in navigating around an aerodrome. It is essential that you understand the colour coding and meaning of these four types of signs when driving on an aerodrome. 1. Location sign: identifies the taxiway on which you are currently located. It has a yellow inscription on a black background. Remember: black square, you re there. An airside driver s guide to runway safety 17

20 2. Mandatory instruction sign: identifies the entrance to a runway or critical area, and areas prohibited for use by aircraft and vehicles. It has a white inscription on a red background. Remember: red and white, runway in sight. 3. Direction sign: identifies the designations of taxiways leading out of an intersection along with an arrow indicating the approximate direction of turn needed to align with that taxiway. They are located prior to the intersection, normally on the left side and normally with a location sign. It has a black inscription on a yellow background. Remember: yellow array points the way. 4. Destination sign: identifies with arrows the directions to specific destinations on the aerodrome (for example, runways, terminals or airport services). It also has a black inscription on a yellow background. Remember: yellow array points the way. 18

21 Examples of airfield sign usage: Sign arrays: grouping of direction signs. Orientation of signs is from left to right in a clockwise manner. Left turn signs are on the left of the location sign and right turn signs are on the right of the location sign. Holding position sign: this sign is located next to the yellow runway holding position markings painted on taxiways that intersect a runway. The example below indicates that you are on Taxiway A at the Holding Point with Runway 15 on your left; the threshold for Runway 33 is to your right. As this is a mandatory instruction sign you must get a specific clearance from ATC to cross this holding point. An airside driver s guide to runway safety 19

22 Did you know? A number of runway incursions result from drivers acknowledging ATC hold short instructions and then proceeding across the runway holding position line anyway. Runway holding position markings on taxiways identify the locations where an aircraft or vehicle is required to stop when it does not have a clearance to proceed onto a runway (you may also see a red and white runway holding position sign and possibly runway guard lights). When instructed by ATC to hold short of runway XX, you must read back the instruction and stop so no part of the vehicle extends over the first solid line of the runway holding position marking. Keep your head up distances of runway holding position markings from the centreline of a runway can vary even at the same aerodrome but they are never aligned with the edge of the sealed surface of the runway. When approaching the runway holding position marking, you must not cross the marking without ATC clearance. A vehicle exiting a runway has not vacated the runway unless all parts of the vehicle have crossed the applicable runway holding position marking. At some aerodromes, holding points are located at a runway undershoot or overshoot and you may not even see the sealed surface of the runway when you are at the holding point. You are still required to get a specific clearance from ATC to cross this holding point. Holding Point for Runway on Taxiway Bravo. An above ground runway guard light is installed between the holding point sign and pavement marking. 20

23 You must ensure you stop so that no part of your vehicle crosses this line TIP: if you are facing solid lines, be sure you are cleared to enter or cross the runway. The dashed lines are always on the side toward the runway. Runway stop bars Stop bars have been introduced at several Australian airports and are considered to be a valuable defence against a vehicle inadvertently entering a runway without a clearance. No special equipment is necessary in a vehicle to enable stop bar usage. A stop bar provides a visual alert to the driver to stop and hold. Crossing the stop bar is only permissible after ATC switches off the stop bar light AND instructs you to cross. TIP: never drive across a row of illuminated red lights on a taxiway. This is a stop bar do not proceed until the lights are turned off and ATC issues you with an instruction to cross. Stop bars are being progressively fitted at some major aerodromes. An airside driver s guide to runway safety 21

24 ILS or GBAS interference At aerodromes with an Instrument Landing System (ILS) or Ground Based Augmentation System (GBAS), it is important that drivers and pilots are aware of the effect that their aircraft/vehicle can have if it enters the critical area established around the equipment. Aircraft or vehicles inside the critical area can distort the signal, which could have significant operational or safety consequences on an aircraft relying on those signals to land. It is important that you remain outside of the critical areas unless you are cleared to enter by ATC. If you are operating on a taxiway and the equipment is in use, ATC will direct you, through your taxi clearances and use of aerodrome signs and markings, to keep you clear of the area. If you are operating outside of the taxiway system (for example, operating on aerodrome grassed areas), the critical area will be marked by signage or frangible posts with markings on them. It is important that you remain outside of these areas unless you are approved to operate within them by ATC. Examples of signs and frangible posts located around ILS and GBAS landing aids. 22

25 Aerodrome lighting There are many different lighting combinations that may exist on aerodromes, especially where aircraft operations are conducted in the lower visibility ranges. When driving around an aerodrome you should remember the following: runway edge lights are white (although on runways fitted with high intensity lighting, the runway edge lights within 600m from the end of the runway will be yellow) Note: picture also shows runway centreline and touchdown zone lights taxiway edge lights or reflectors are blue An airside driver s guide to runway safety 23

26 taxiway centreline lights or reflectors are green runway guard lights are flashing yellow lights (either in the pavement or located on the side of the taxiway) and highlight a runway holding position Runway holding point as viewed from a taxiway centreline. This holding point has both above ground and in-pavement runway guard lights. For more information on runway safety, visit or safety.promotions@airservicesaustralia.com Designed and published by Airservices. Correct at the time of printing. Check AIP and refer to ERSA for local procedures. 24

27 Airservices has developed a range of safety educational products to assist pilots and airside drivers understand topics such as: Working with ATC Runway Safety Airspace Infringements The information will not only make your operations safer, but give you an understanding of how we work, which will improve the efficiency of your activities and highlight that we are an important part of your crew who can assist you. Safety Bulletins Safety Bulletins are designed to deliver information quickly to the relevant sections of the aviation community, to improve awareness and understanding of important safety information. Safety Bulletins are available on the Airservices website at the following location: An airside driver s guide to runway safety 25

28 Runway Safety Airservices has developed a range of runway safety products to reduce the likelihood of runway incursions, runway excursions and runway confusion. These products include Runway Incursion hotspot diagrams for: Moorabbin aerodrome Bankstown aerodrome Parafield aerodrome Jandakot aerodrome Archerfield aerodrome Sunshine Coast aerodrome Gold Coast aerodrome. For more information, or to view Airservices safety products, have a look at our Pilot and Airside Safety webpage. The following factsheet on Tips to Avoid a Runway Incursion was designed by the Australian Runway Safety Group to assist pilots avoid having a runway incursion. Although designed for pilots, many of the considerations are the same for airside drivers. 26

29 TIPS TO AVOID A RUNWAY INCURSION Plan your taxi» At both departure and arrival aerodromes» Check for NOTAMS that will affect your ground movements» Research the likely runway in use (ATIS or Met)» Check ERSA for standard taxi routes» Ensure you have a current Aerodrome Chart for planning purposes and to reference during taxi The Aerodrome Chart in AIP Departure and Approach Procedures (DAP) contains more detail than ERSA for ground operations. Aerodrome Charts are accessible through the Publications/ AIP section of the Airservices website. Ensure you understand aerodrome markings, signs and lights» Look out for, and comply with these when taxiing Your destination aerodrome might have different markings to your departure aerodrome Holding Points will not be aligned with the sealed surface of the runway they will be set back to be in line with the gable markers, or a greater distance Minimise heads-down activities while the aircraft is moving Resist the pressure to take short cuts Listen and comply with ATC instructions and clearances» Wherever possible get your airways clearance prior to engine start or taxi» Write down your taxi instructions» Ask for progressive taxi instructions if unfamiliar with the taxi routes at an airport» Listen carefully to avoid responding to an instruction/ clearance intended for someone else» Use standard phraseology and read back requirements from AIP Obtain a clearance to enter, cross, backtrack and taxi on any runway, including runway undershoots (where marked) All runways are considered active at all times and require a clearance to enter, cross, backtrack or taxi Unless directed otherwise by ATC, a clearance to land on any runway authorises you to cross any intersecting runway during that landing (it does not automatically allow you to vacate using an intersecting runway as a taxiway) Before entering a runway, always look out for other aircraft or vehicles on, or approaching the runway. Stay alert until after engine shut-down More information on runway safety is available through:» pilot-and-airside-safety/runway-safety/» runway.safety@airservicesaustralia.com B A B If you are unsure about your clearance, or your location, immediately check with air traffic control Developed by the Australian Runway Safety Group an aviation industry collaborative committed to maintaining safe aerodrome operations. Diagram not to scale. Indicative markings only

30 COMMON AERODROME SIGNS AND MARKINGS RWY 15 RWY 33 Runway side Mandatory Runway Holding Position Sign Generally co-located with the Pattern A runway holding position markings. Gable marker, mandatory runway holding position sign and Pattern A runway holding position marking ILS critical area holding position sign and Pattern B holding position marking Holding side Pattern A Runway Holding Position At controlled aerodromes you must have ATC clearance to cross from the Holding side to the Runway side. These will always be set back from the sealed surface of the runway to be in line with the gable markers or a greater distance. ILS Critical Area Holding Position Sign Generally co-located with a Pattern B holding position marking. Pattern B Holding Position Marking Intermediate holding position marking Similar to Pattern A runway holding positions, but are generally associated with precision approach runways. These will generally be set back further than runway holding positions and will only be applicable when advised by ATC or the ATIS. Aircraft No Entry Destination and taxiway location signs DIAGRAM NOT TO SCALE At some aerodromes non-standard signage may exist. All signs with white text on a red background are mandatory and identify a location beyond which aircraft or vehicles shall not proceed unless authorised by ATC. Destination signs These give directions of where to go and will be located before the taxiway turnoff (e.g. Turn left at the next taxiway for the apron) Remember: Yellow array points the way Intermediate Holding Position Marking Marks the holding position between taxiways. You will need to hold at these if ATC direct you to hold short of a particular taxiway. Taxiway Location Signs These show where you are on the aerodrome (e.g. You are on taxiway A) Remember: Black Square You are there

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